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lightproof

 - 2 dictionary results

light⋅proof

[lahyt-proof]
–adjective
impervious to light: a lightproof film cartridge.

Origin:
1920–25; light 1 + -proof
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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light·proof   (līt'prōōf')   
adj.  Impenetrable by light: film stored in lightproof containers.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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